Major Vitamin D Clinical Trials Failed to Show Any Health Benefits

What was said

"Everyone thought, like back in the '80s, '90s, everyone started noticing, scientists started noticing that people who naturally had people with lower amounts of vitamin D in their blood had higher rates of all like the classic chronic diseases. So they started recommending vitamin D pills. So then they did all these clinical trials to prove that it would help. Huge, huge clinical trials, tens of thousands of people, follow-ups that went for many years. None of them showed a benefit."

Despite observational data linking natural vitamin D levels to lower disease rates, massive clinical trials of vitamin D supplementation showed zero benefit for any condition. The New England Journal of Medicine published an editorial in 2022 recommending doctors stop prescribing it. Natural vitamin D from sun exposure, however, correlates strongly with reduced mortality.